Locomotive stoker



LOCOMO'T-IVE STOKER Original Filed July 2, 1928 INVENTOR we", .6 23M gnu-Mm- @L. Q; a I WN WITNESSES Original application filed July 2, 192a,

slightly inclined position an Patented Nov. 1932 UNITED *sTA TEs warm as; rowan, or nu'rmoar, MARYLAND, assrouoa To run s'rmann PATENT orrlce Brena COMPANY, INCORPORATED, A CORPORATION 01 DELAWARE invention ertains to locomotive;

stokers, and'especia ly to the t e of stokers disclosed in my copending app ication Serial No. 289,774, filed July 2, 1928, of which the present application is a division, in which the fuel is fed, from a fuel forwarding device under the locomotive tender, direct to the fire box by a screw conve or device operating in a conduit device whlch is dis sed in a extends through the locomotive deck plate upward to the fire door; so that the feeding is easy and free, and; there is little, if any, tendency to break up and pulverize the lumps of fuel.

It is anobject ofthe present invention to produce a stokerofthe above character in which the fuel forwarding device'c'arried by the tender occupies a stationary position with respect to the latter, and the conduit portion carried by the locomotive occupies a stationary position with respect to such locomotive, while still providing for the relative movements between the locomotive and tender which occur when the latter are in use. A. further object of the resent invention is to provide a stoker of t e above character which, while fully efiiclent, can be produced at relatively lowexpense, and can, in

certain circumstances, be installed exceptionformed with a hollow partially spherical portion 12 upon which is mounted the corresponding portion 13 of the rear section 14 of telescoping conduit 24, whereby the trough and rear section are connected by a hollow bail and socket joint, designated 15. Upon the rear section 1 itelescopes the front section 16 of the telescoping conduit 24, such from; section havin at its end a hollow spherical portion 1 seating in the correspondingly shaped portion 18 of a riser Serial miaaam; mvma m 1920. semi m 'a aam.

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this application fled Octobeili,

conduit 19 fixed to the lbcomotive frame, so

that the front section 16 and riser conduit 19 are connected by a ball' and socketjoint,

designated 20. I v 1 For forwarding the fuel, a conveyor screw 21, suitably rotated, -is mounted in bearings in thebox and is connected, at its front end, by means of a universal joint 22, to the rear section 23 of a telescoping shaft which" is contained in the telescoping conduit 24. Such rear shaftsection is provided with a conveyor screw 25, and the front section 26 of the telescoping shaft may likewise be provided with a propeller portion 27. Such front section is connected, by a universal joint 28, with a conveyor screw 29 mounted in the riser conduit 19.

The socket portion 18 is secured to. the 10- comotive frame beneaththe deck plate 30 at the rear end-of the latter; and the riser conduit 19 extends u ward, at a gentle inclination, through the eck-plate 30 to the opening 31 ofthe'fire-box, where it opens 11' on a distributor plate 32, wherefrom the uel is di rected into the fire box by steam blast or the like. By this construction, the riser conduit is made to assume approximate alignment with the telescoping conduit 24:; so that the fuel is forwarded in an even stream, with a minimum of liability to breaking up of the particles. The conveyor screw 29 extends u .to the fire box opening 31, so that the fuel is delivered directly upon the distributor plate.

it will be noted that, by the above construction, not onlyis the riser conduit 19 permitted to remain stationary with respect to the locomotive,thus avoiding the inconveniences and dangers that would attend a riser conduit which would move about, in the locomotive cab, in accordance with the relative movements between the locomotive and tender,but the trough 10 is permitted to remain stationary with respect to the tender, which latter is an advantage in many circum'. stances.

As an entirely new unit, the whole stoker' can be produced at a relatively low cost. But a num er of the parts of the stoker,those to the rear of the riser conduit 19,--are the same as,or similar to, elements of old stokers which will be replaced by the stokers of my invention. When such an old stoker is in place upon a locomotive to be equipped with a stoker of my invention, this makes the installation of the new stoker a matter of exceptional economy; since a number of the elements of the old stoker may be retained as parts of the new device.

I claim:

1. In a device of the class described, a locomotive having a firebox including a backwall provided with a firing opening and firing deck extending rearwardly from the backwall, a tender behind the locomotive including a fuel bin, and a mechanical stoker comprising a trough rigidly mounted on the tender below the level of the firing deck and in open communication with the bin to receive fuel therefrom, a substantially straight conduit rigidly mounted on the locomotive and extending upwardly and forwardly from a position immediately below and closely ad'acent to the rear end of the firing deck and elivering directly to said firing opening from its forward end, an intermediate telesco ic conduit flexibly connected in end to en relation with the adjacent ends of the trough and the rigidly mounted conduit, said intermediate conduit inclined upwardly from said trough and said rigidly mounted conduit inclined upwardly from said intermediate conduit, the tangent of the angle between the rigidly mounted conduit and the horizontal being less than the cotangent of said 3. In a locomotive having a firebox provided with a backhead havin a firing opening therein, a cab having a dec and a tender tender deck to said nozzles and comprising conduit sections arranged angularly in relation to each other, said stoker conduit having a conduit section securely attached to the backhead in communication with said opening and slopin forwardly and upwardly from a point adjacent the cab deck to said nozzles, a conduit section rigidly mounted in the tender, an intermediate conduit section flexibly connecting the first two named conduit sections, and a fuel conveyor within said stoker conduit composed of screw sections universally jointed together substantially adjacent the respective junctions of the anguarly arranged conduit sect-ions, said conveyor extendin substantially throughout the entire lengt 1 of said Stoker conduit.

In testimony whereof, I si n my name.

NATHAN LOVER.

angle, a screw in said trough and in each of said conduits for advancing fuel to the firing opening, and means for distributing the fuel in the urebox.

2. In a locomotive having a firebox provided with a backhead having a firing opening therein, a cab having a deck, and a tender provided with a deck; nozzles for producing fluid jets positioned adjacent said o ening, a stoker conduit assuming a genera direction forwardly and upwardly from beneath the tender deck to said nozzles and comprismg conduit sections arranged angularly in relation to each other, said stoker conduit havlng a conduit section securely attached to the backhead in communication with said opening and sloping forwardly and upwardly from a point adjacent the cab deck to said nozzles and havin its bottom inside surface substantially straight along the medial vertical plane of the conduit section, a conduit section rigidly mounted in the tender, an intermediate conduit section flexibly connectin the first two named conduit sections, and a uel conveyor within said stoker conduit composed of screw sections, universally jointed together substantially adjacent the respective junctions of the angularly arranged conduit sections, said'conveyor extending substantially throughout the entire length of said stoker conduit.

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